Question

The length of a rectangle is represented by the function L(x) = 4x. The width of that same rectangle is represented by the function W(x) = 7x2 − 4x + 2. Which of the following shows the area of the rectangle in terms of x?

(L + W)(x) = 7x2 + 2
(L + W)(x) = 7x2 − 8x + 2
(L ⋅ W)(x) = 28x3 − 16x2 + 8x
(L ⋅ W)(x) = 28x3 − 4x + 2

Answer 1

What is the relation between Length and Width in the area of a rectangle?

Answer 2

@help_people

Answer 3

You there?

Answer 4

hi

Answer 5

yes srry and hi

Answer 6

@Zale101 @caldwelllayna

Answer 7

Help_people.
What is the area of rectangle?

Answer 8

\(\LARGE Area=?\)

Answer 9

l x w? @Zale101

Answer 10

looks like c...

Answer 11

could you explain why?

Answer 12

i am thinking area would just be multiplication of the two equations.. \[4x*(7x^{2}-4x+2)=28x^{3}-16x+8x\]

Answer 13

ok thank you and are you sure?

Answer 14

thats correct

Answer 15

The area of a rectangle is L x W, that means if we had function L(x) and W(x) we multiply them together to find the area.

Answer 16

ok basically like nick said?

Answer 17

Yes. That's why i asked you what is the area of a rectangle, so you can get a sense of what to do with L(x) and W(x). Which is, you multiply.